ALEXANDRIA, Va., Nov. 25 -- United States Patent no. 12,483,221, issued on Nov. 25, was assigned to Skyworks Solutions Inc. (Irvine, Calif.).

"Multilayer piezoelectric substrate device with partially recessed passivation layer" was invented by Rei Goto (Osaka, Japan) and Hironori Fukuhara (Ibaraki, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A surface acoustic wave resonator comprises a multi-layer piezoelectric substrate including a carrier substrate, a layer of a first dielectric material disposed on the carrier substrate, and a layer of piezoelectric material disposed on the layer of the first dielectric material, interdigital transducer electrodes disposed on the layer of piezoelectric material ...